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The variables LBORNRLO, LBORNRHI, LBSTNRLO, LBSTNRHI, LBNRIND and LBLOBXFL are expected variables. but are typically not used in these types of studies. Hence these variables are included in the datset dataset but the values may be are null. These variables are not included below to save space.  

For lab tests where the specimen is collected over time (e.g., 24-hour urine collection), the start date/time of the collection is represented in LBDTC and the end date/time of collection is represented in LBENDTC. LBDTC and LBENDTC dates are based on the specimen collection date. If the date of the assay is needed, it can be added as a non-standard variable.  

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The biomarkers were categorized using LBCAT and LBSCAT. These categories were based on the scientific classification of the type of  biomarker and the associated constituent being evaluated by the biomarker test. Other categorization may be done by the sponssor, based on the study design. These may include using Biomarker of Tobacco Exposure, Biomarkers of Harm or Potential Harm, Biomarkers of Compliance, etc. The LBSCAT can be used to provide the type of markers (e.g., Tobacco Alkaloid, Polynuclear Aromatic Hydrocarbons, Tobacco Specific Nitrosammines) or the health impact of the biomarker (e.g., cancer, cardiovascular disease, respiratory effects, reproductive problems, and or addiction).

Total Nicotine equivalents (TNE-7) were calculated by the sponsor based on the data below and represented in an ADaM dataset. Total Nicotine equivalents are the sum of nicotine, cotinine, 3-hydroxycotinine and their glucuronide conjugates. Other estimates of TNE can be used and are typically denoted using terms like TE-2, TE-3. For example TE-2 is the sum of cotinine + 3'-hydroxycotinine.  

Dataset wrap
Namelb
Rowcaps
Rows 1-2:Show the nicotine and cotinine measurements from a serum blood sample. These tests were performed at every visit but only the nicotine results at Visit 1, and the cotinine results at Visit 3 are shown. 
Rows 3-4:Urine creatinine and 24-hour urine volume is are shown. 
Rows 5-16:Show various biomarkers related to Tobacco Alkaloids. These were obtain obtained from a planned 24-hour urine sample. The start and end time of the urine collection are provided in LBDTC and LBENDTC. Only the results from Day 180 are shown.
Dataset2
RowSTUDYIDDOMAINUSUBJIDLBSEQLBTESTCDLBTESTLBCATLBSCATLBORRESLBORRESULBSTRESCLBSTRESNLBSTRESULBNAMLBLOINCLBSPECLBMETHODLBLOBXFLLBLLOQVISITNUMVISITLBDTCLBENDTC
1TOB777LB0011NICOTINENicotineTOBACCO ALKALOIDNICOTINE30ng/mL3030ng/mLTobacco Marker Testing Laboratory3853-9SERUMLC/MS/MSY21BASELINE2021-01-17
2TOB777LB0012COTININECotinineTOBACCO ALKALOIDNICOTINE400ng/mL400400ng/mLTobacco Marker Testing Laboratory10365-5SERUMLC/MS/MS
23Day 1802021-07-20
3TOB777LB0021CREATCreatinine24-HOUR URINE TEST
0.8ng/mL0.80.8ng/mLTobacco Marker Testing Laboratory65634-8URINELC-MS-MSY
1BASELINE2021-06-21T08:002021-06-22T08:00
4TOB777LB0022VOLUMEVolume24-HOUR URINE TEST
1875mL18751875mLTobacco Marker Testing Laboratory
URINE
Y
1BASELINE2021-06-21T08:002021-06-22T08:00
5TOB777LB0023NICOTINENicotineTOBACCO ALKALOIDNICOTINE45ng/mL4545ng/mLTobacco Marker Testing Laboratory3854-7URINELC-MS/MS
0.23Day 1802021-12-15T08:002021-12-16T08:00
6TOB777LB0024NICGLUCNicotine-glucuronideTOBACCO ALKALOIDNICOTINE40ng/mL4040ng/mLTobacco Marker Testing Laboratory
URINE

0.23Day 1802021-12-15T08:002021-12-16T08:00
7TOB777LB0025NOXTNicotine-1 N-oxidTOBACCO ALKALOIDNICOTINE113.5ng/mL113.5113.5ng/mLTobacco Marker Testing Laboratory
URINEHPLC-ESI-MS/MS
2.503Day 1802021-12-15T08:002021-12-16T08:00
8TOB777LB0026COTININECotinineTOBACCO ALKALOIDNICOTINE300ng/mL300300ng/mLTobacco Marker Testing Laboratory10366-3URINELC/MS/MS)
0.053Day 1802021-12-15T08:002021-12-16T08:00
9TOB777LB0027COTGLUCCotinine-glucuronideTOBACCO ALKALOIDNICOTINE275ng/mL275275ng/mLTobacco Marker Testing Laboratory
URINE

0.23Day 1802021-12-15T08:002021-12-16T08:00
10TOB777LB0028COXTCotinine-n-oxideTOBACCO ALKALOIDNICOTINE117.5ng/mL117.5117.5ng/mLTobacco Marker Testing Laboratory
URINEHPLC-ESI-MS/MS
2.023Day 1802021-12-15T08:002021-12-16T08:00
11TOB777LB0029OHCOT or HCTTTrans-3-hydroxycotinineTOBACCO ALKALOIDNICOTINE2000ng/mL20002000ng/mLTobacco Marker Testing Laboratory33916-8URINE

0.13Day 1802021-12-15T08:002021-12-16T08:00
12TOB777LB00210OHCOTG or 3HC-GlucTrans-3-hydroxycotinine glucuronideTOBACCO ALKALOIDNICOTINE3529ng/mL35293529ng/mLTobacco Marker Testing Laboratory
URINE

0.033Day 1802021-12-15T08:002021-12-16T08:00
13TOB777LB00211NORNCTN or NNICNornicotineTOBACCO ALKALOIDNICOTINE6ng/mL66ng/mLTobacco Marker Testing Laboratory33917-6URINELC/MS/MS
2.503Day 1802021-12-15T08:002021-12-16T08:00
14TOB777LB00212ANBSAnabasineTOBACCO ALKALOIDNICOTINE5ng/mL55ng/mLTobacco Marker Testing Laboratory33915-0URINELC/MS/MS
0.513Day 1802021-12-15T08:002021-12-16T08:00
15TOB777LB00213NCOTNorcotinineTOBACCO ALKALOIDNICOTINE2ng/mL22ng/mLTobacco Marker Testing Laboratory77740-9URINE

1.113Day 1802021-12-15T08:002021-12-16T08:00
16TOB777LB00214ANTBAnatabineTOBACCO ALKALOIDNICOTINE9.1ng/mL9.19.1ng/mLTobacco Marker Testing Laboratory
URINEHPLC-ESI-MS/MS

3Day 1802021-12-15T08:002021-12-16T08:00
17TOB777LB20011

OH_2_FLU or 2-FLU

2-Hydroxyfluorene 3‐Hydroxyfluorene (3‐FLU)POLYNUCLEAR AROMATIC HYDROCARBON
30ng/mL3030ng/mLTobacco Marker Testing Laboratory3853-9URINELC-MS/MS3853-9
2Day 602021-09-15T010:002021-09-16T009:20
18TOB777LB20012OH1NAPHT1-HydroxynaphthalenePOLYNUCLEAR AROMATIC HYDROCARBON
400ng/mL400400ng/mLTobacco Marker Testing Laboratory10365-5URINELC-MS/MS10365-5
2Day 602021-09-15T010:002021-09-16T009:20
19TOB777LB20013OH1PHE

1-Hydroxyphenanthrene

POLYNUCLEAR AROMATIC HYDROCARBON
45ng/mL4545ng/mLTobacco Marker Testing Laboratory3854-7URINELC-MS/MS3854-7
2Day 602021-09-15T010:002021-09-16T009:20
21TOB777LB20014OH3BAP3-Hydroxybenzo[a]pyrenePOLYNUCLEAR AROMATIC HYDROCARBON
300ng/mL300300ng/mLTobacco Marker Testing Laboratory10366-3URINELC-MS/MS10366-3
2Day 602021-09-15T010:002021-09-16T009:20
22TOB777LB20015COCarbon MonoxideVARIOUS GASES
10%1010%Tobacco Marker Testing Laboratory
EXPIRED AIRMultiple Wavelength Spectrophotometer

2Day 602021-09-15

The 2 rows of supplb.xpt add qualifying information to the laboratory data collected (RDOMAIN = "LB"). IDVAR defines the key variable used to link this information to the LB data (LBSEQ). IDVARVAL specifies the value of the key variable within the parent LB record to which the SUPPLB record applies. The remaining columns specify the supplemental variables’ variable names (LBNVOID and LBNMVIOD, labels, values, origin.  

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